The sequence of the Requiem Mass, the Dies Irae is one of the church's most famous hymns. It describes the final judgment "as prophesied by David and the Sybil," that is, according to both religious and secular oracles. It details the sinner's request for mercy, the grace of final penitence, and ultimately, salvation.

May the souls of all the faithful departed, through the mercy of God, rest in peace. Amen.